Zebrafish
Zebrafish, sharing 70% of human genetics and having externally fertilized transparent embryos, serve as invaluable models for studying gene function and genetic diseases like Duchenne muscular dystrophy, aiding in drug development.
Dog
Dogs, while less commonly used in research, play a vital role in cancer and spinal cord injuries due to similarities with humans. They are also crucial in drug safety studies, benefiting both human and canine health.